<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="http://localhost:8080/servlet/param " method="post">
    用户名：<input type="text" name="username"/><br/>
    密码：<input type="password" name="password"/><br/>
    兴趣爱好：<input type="checkbox" name="hobby" value="cpp"/>C++
    <input type="checkbox" name="hobby" value="Java"/>Java
    <input type="checkbox" name="hobby" value="Js"/>JavaScript <br/>
    <input type="submit">
</form>
</body>
</html>